Sewing machine



Aug. 7, 11.923. 1,464,377 J. P. was

SEWING MACHINE Filed March 29, 1921 5 Sheets-Sheet 1 1&1 A

INVENTOR. 7% 109m PI Wet's. 71 W A TTO E YS.

Aug. '7, 1923. I 1,464,377 J. P. WEfl$ SEWING MACHINE Filed March 29, 1921 3 Sheets-Sheet 2 w HF Aug; 7, 1923, 1,464.37?" J. P. was

SEWING MACHINE Filed'March 29, 192; V s Sheets-Sheet 5 IN V EN TOR.

Patented Aug. 7, i923.

JOHN P. VVEIS, 0F NYACK, NEW YORK, ASSIGNOR TO METROPOLITAN SEWING MACHINE CORPORATION, OF NYACK, NEW YORK, A CORPORATION OF DELAWARE.

SEWING MACHINE.

Application filed March 29, 1921 Serial No. 456;?29.

T 0 oZZ- whom it may concern:

Be it known that I, JOHN P. TRIS, a citizen ot the United States, residing atNyac-k, in the county ot' iiockland and State of New York. have invented. certain new and useful Improvements in Sewing Machines, o'l which the following is a specification.

lhis invention relates to sewing machines, an object thereot being to provide an improved mechanism "tor laying a thread on top of the work in alternating loop form, such loops being stitched down on top of the work by the needle threads for thepurpose 0t making;- an ornamental or coverseam for joining pieces of goods, This invention is particularly useful when used in cou'iunction with a comlpleinental stitchforming mechanism, such as a transverse thread carryii'ng loopcr which torlns ornamental, or covering stitches on 'the bottoni ot the work by the concatinatimi of the looper thread with the needle threads.

A 'lurther object at this invention is to provide an improved Inecl'ianisn for laying across the path of the needles loops of thread to be stitched down by the needle threads, the in'ilproved construction being; such that the operating mechanism is en tirely out oi the way so as not to interfere with the hands oi the operator, during the handling of the work.

A. further object of the invention is to provide a thread loop-forming: mechanism capable of very high speeds. tree 't'roni noise and vilnation. etticient and economical in operatioi'i, and (it such constrlurtion as to ne ccssitatc a minimum of care, adjmtment, replacement and oiling'.

.t further object of this invention is to provide an improved mechanism tor laying; a cross-thread, such mechanism having but one HIOVGITIQIlt. namely, continuous motion in one direction and comprisin such iniprored instrumentalities as to render the same simple to thread, and capable 0'1" lay ing a thread in uniform alternating loops in the path at the needles irrespective of the length of stitches.

It Further object of the invention is to provide a rotary loop tormer carried by the presser toot otthe scwino, machine. capalile of laying in alternating; loop Form in thepath ot the needles the thread to be stitched down by the needle threads. the

driving means for the thread loop-forming mechanism being derived from the rotary top shaft of the sewing machine.

()ne of the advantages of the present invention is that the mechanism combines simplicity with eflicacy, consists of a minimum of parts, and is adapted to give a continuous rotary motion to the thread loop former which carries a loop of thread into position in the path of the needles, the rotary motion of the thread loop-foianer being continuous in the presser foot of the sewing machine, and the center of the thread loopformer being alined with the vertical axis of the needle bar. Thus, my improved .niechanism is capable of co-operation with needles ol' ditferent gauges for the purpose of making different widths of seams, the thread loop-tormer being carried by. a ring gear in the presser toot operating at the same speed ratio as the main shaft of the machine.

The thread loop-former driving gear is operated from the top rotary shaft of the machine through suitable gearing by means of a shaft extending down through the hollow presser bar connected to the gear in. the presser "toot for imparting rotary movement to the thread loop-former. The device is of such construction that .it performs accu rately at very high speeds, one revolution or cycle for each complete stitch formation.

Other objects of this invention will appear in the following description thereof, reference being had to the accompanying drawings forming a part of this specification. wherein like reference characters indicate corresponding parts in the several views and wherein ltigQl is a perspective view of the entire inachine, showing the working mechanism in full lines, and the. framework of the machine in dotted lines; Fig. 2 is a front end elevational view.partly in section, the needle bar and driving mechanism shown in full lines, and. the top portion of the sewingmachinehead forming the framework, shown in dotted lines; Fig. 3 is a top plan view taken on the line 3-3 of Fig. 2, lookingin the direction of. the arrow; Fig. 4t is a bottom view of the thread. loop castoff ring; Fig, 5 is a top plan view of the thread loop former carried by the ring :hown in dotted lines; Fig. 6 is a detailperspective view of the'presser toot carrying ing the act-ion of the thread controller which at the proper time gives and takes up slack thread during the stitch formation; Fig. li is a detail perspective View illustrating the stitches joining two pieces of work; F l5 is an end view of Fig. 14, and illustrates the manner in which the two pieces of work are joined by the needle threads connected on top of the work with the loops of thread, as well as connected on the bottom of the work by the looper threads; Fig. 16 is a perspective view of the circular loop forming plate adapted to be assembled to and carried by the thread loop forming gear. showing the vertical upstanding lug which carries the thread to form the loop; Fig. 17 is a perspective view of the thread loop forming gear, showing the circular upstanding flange over which the loop forming plate fits, and also showing the upstanding lug which alines with the lug of the circular plate for forming the thread loops; and Fig.18 is an enlarged sectional view of the presser foot mechanism taken on line 18-18 of Fig. 3, looking in the direction of the arrow.

This invention is an improvement of the cross stitch mechanism, shown in my Patent No. 1,058,820 dated April'15. 1913, wherein two cross threads were used in the formation of the covering stitches on top of the work. The threads were alternately laid in loop form, crossing one another on the center line between the needle stitches, and the device was operated in such manner as to lay the threads first one way at one stitch and then the other way at the next stitch, and so on, alternating as thestitching proceeded, the parts having a rotary scillatory more ment and being operated at a speed of half that of the main shaft. In the construction however, the reversing of the operating; mechanism proved to be destructive at high speeds and the parts became shaky andnoisy and considerable difliculty was encountered in the threading of the thread carriers, it being necessary to pass the cross threads through several small thread eyelets to get them into position in the gears for proper stitch formation.

This invention is also an improvement on the cross thread laying mechanism of my Patent No. 1,328,108 dated January 13, 1920. In that invention the cross thread carrying finger was given rotary oscillatory movement around the needles by suitable mecha nism. The finger, which was carried from above and projected downward, was of considerable length, and set up a whipping action when operated at high speeds, which, although out of the Way of the needle threads normally, would interfere therewith each, time the needle threads became broken, whereupon the machine had to be turned to a given position by turning the hand wheel in order to re-thread the needles.

All the above disadvantages or objections are done away with in the present improvement, the cross thread carrier in the present instance having a continuous movement around the needles, or a movement in a continuous forward path relatively to the needles, it being understood that by a continuous forward path is meant a path of movement distinguished from a forward and backward path of movement, or an oscillating or reciprocatory path, disclosed for instance in the patents hereinbefore mentioned. Hence in the present case the cross thread carrier moves in a continuous line or direction relatively to the needles. Furthermore, there is no mechanism'to obstruct the freedom of threading the needles, or the handling of the work, and in threading the thread loop-former it is merely necessary to lay the end of the thread in the path of the needles, there being no eyelets or thread holes into which the thread must be inserted for guiding it into position for'forming the stitches.

Another advantage of the present improvement resides .in the manner in which the parts are connected for operation in that the driving mechanism is contained in the head of the machine, and is operated from the top drive shaft. and being entirely enclosed, prevents the throwing of oil and the soiling of goods, the construction being such that very few of the parts have a vertical rise and fall movement though they are connected with the presser foot which has a rise and fall movement because of its cooperation with the usual four-motion feed for feeding the goods. This feature is of considerable importance because it is well known to those skilled in the art that heavy presser foot mechanism operating at high speed has a tendency to cut and injure the fabrics and causes breakage of throat plates and excessive wear on the feed operating mechanism. With the construction of the present improvement, the number of parts and weight thereof is re duced to a minimum. The presser foot and the thread loop-former carried thereby is capable of being lifted from the work, as occasion requires, either by hand or foot treadle, and when so lifted there is no part of the mechanism to interfere with the needles or needle holders, in case the machine is operated.

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The present machine comprises a machine base 1, and a front standard 2 forming a support for the cloth plate 3. The vertical wall 4; of the base forms one portion of a boxshaped section of the machine base, upon which is. mounted the overhanging arm, and is attached thereto as at 5. A portion of this arm extends forward as at 6, and affords a seat for holding the rear right hand edge of the cloth plate The overhanging portion of the top arm is indicated at7, the upright support at 8, and the head of the machine at 9. The bottom shaft 10 operates in any suitable bearings, such as the bushing 1 l. of the rear wall and an intermediate bear in 11 The rear end of the bottom shaft 10 carries: the belt wheel 12 for operating the machine. Rotary movement of the bottom shaft 10 is transmitted to the top shaft 13 by connecting rods 1 1, cranks 15 on the bottom shaft, and similar cranks 16 on the top shaft. The top shaft 13 operates in bearings 17 and 19 at the rear and front ends repectively of the machine, and carries a hand wheel 18 for turning the machine by hand.

In' the present instance the feed mechanism comprises a suitable feed dog 20 for feeding the work, the dog being carried by a feed bar 21 which is pivotally connected at 22 by a shaft 23 to the top portion of the feed rocker frame 2 1, for imparting feeding movement to the feed dog. A pitmaii 25 also connects the shaft 23 to an adjustable crank 26 by the usual stud and lock nut 27, which is adjustable across the face of the crank disc 28 by means of the screw 29. Rise andv fall movements are given to the feed by a lifting eccentric 30, carried by the bottom shaft 10 adjacent to the inner wall of the standard 2. The connection 31 surrounds the eccentric 30, and is pivotally con- .nected to the feed bar 21 by a pin 32. The bottom end of the feed rocker frame 24 is pivoted to the machine base 1 by a stud 33.

The looper mechanism comprises a pair of gibs 3 1 and 35, secured to the top surface of the base 1, and forming a guideway for the slide 36 extending across the width of the machine base. This slide is provided with upstanding lugs 37 and 39 tapped to receive conical. screws 38 and 10 respectively, which are locked by screws 41. Between the conical ends of the screws 38 and 40 is pivotally supported the looper carrier 42, the shank 43 of which is provided with hub tapped to receive a ball stud 14a The top portion of the looper carrier is provided with a thread-carrying looper 15 and adjacent thereto is secured a needle guard 46. The looper is oscillated in a path transverse to the line of feed by the ball joint 47 carried by the ball stud 4: 1 and connected to the ball joint 48 by a rod 19. The ball joint a8 is pivotally connected toa ball crank 50 formed on a disc 51 carried by a crank shaft (not shown) which crank shaft operates in suitable bearings of the bracket 52, and is operated by a right-angle spiral gear drive. The driving gear thereof is indicated at 53, which co-acts with a similar gear (not shown) carried by the crank shaft of the disc 51, thereby imparting rotary movement to the crank 50' for oscillating the looper. A detailed description of the construction of the looper drive is deemed unnecessary since it forms no part of this invention, the same being embraced in my Patent No. 1,264,585 dated April 30, 1918.

The needle driving mechanism comprises a crank disc 5 1, carried at the forward end of the shaft 13, a crank pin 55, and pitman connection 56 pivotally connected to the needle bar 57 through the clamp collar 58,

and stud 59, for reciprocating the needle bar vertically in the bearings 60. The lower end of the needle bar carries the usual needle holder 61, for the reception of the needles 82. Any suitable conducting means for threads 64: are provided, such as guides 63, thread guide 66 secured to a post 65, guide 67 secured to thearni 7 as at 68, tensions 69, and entrant guides 70.

The looper thread 71. is conducted to the looper by a slotted tube 72, (see Fig. 1) which is supported by brackets 73, carried by the front edge of the machine base 1. The take-up mechanism generally indicated by 74: need not be described as it forms no part of this invention, but is described in my Patent No. 1,328,023 dated January 13, 1920.

The presser foot mechanism comprises a presser foot bottom. 75 having an upturned too 76, and a lateral. projecting poriion'77 for guiding tubing, lace and the like into proper position for the needles. The presser foot bottom is dovetailed into the presser foot 78, which is provided with a shank 79, tapped at to receive clamp screws for securing the presser foot to the presser tube 81 by means of clamp 82. The presser tube 81 operates vertically in a bushing 83, which is secured in the head 9 of the machine. Clamped' to the upper, end of the presser tube 81 by means of a screw 85 is a guide 84:, the rear end of which projects through a guide slot in the head 9 to prevent the tube 81 from turning the free end of the guide. This guide carries a vertical wire 86 secured therein by a screw 87. The top end of the wire (not shown) is curved to encircle the end 88 of the usual presser lifter lever 89 pivotally secured to the rear wall of the arm 7. Pivoted to the rear end of the lever 89 as at 90 is the presser lifting rod 91,'which extends down thri'iugh the machine and connects with the usual foot treadle or knee lift (not shown) for lifting the presser foot, the hands of the operator thus being free to manipulate the work. In

addition to the foot or knee lifter means, the usual hand lifter 92 pivotally secured at 93 in the guiding slot of the machine head 9 is provided, the same adapted to coact with. the guide 8 1 for lifting the presser foot. Above the guide 8 1 is mounted a collar 9% provided. with slot on the rear side for the reception of the end 95 of the presser spring 96. An adjusting screw and lock nut 98 regulates the pressure of the spring for holding the presser foot down on the work.

The top stitch forming mechanism consists of a driving gear 99, carried by the top shaft 13, and driven by the crank disc 54, pins 100 connecting the gear with the disc forrotary movement therewith. The gear 99 is in mesh with a gear 101 of equal diameter, which is provided with a collar through which the screws 1.02 pass for securing it to a shaft 103 operating in bearings 104: and 105. A spiral gear 106 is secured to the shaft 103 and is in mesh with a spiral gear 107 slidably keyed to a vertical shaft 108 by a key 109, operating in a groove 110.

The gears 106 and. 101 are entirely, enclosed in a casting 111 secured by screws 113 to a bracket 112, the latter being secured to the bearing 19 by screws 11 1, and bored to fit over the reduced end 115 of the bearing 19. By this construction proper alinement of the gears with respect to the top shaft 13 and the vertical shaft 108 is obtained at all times, and important advantages in the manufacture assembling and oiling of the parts is furthermoreobtained as a result thereof.

The shaft 108 is constructed to form bearings 116 and 117 in each end of the tube 81, and intermediate these hearings the shaft is reduced in diameter as indicated at 11.8. The top 119 of the shaft 108 is conical and operates in conical seat in the yoke 120. which is provided-with a collar 122 secured as at 123 to the upper end of the tube 81..

By reason of the conical. end 119 seated in the yoke, and an enlarged shoulder formed by the upper portion. of the shaft 108 resting on thetop of the tube 81 the shaft 108 is restricted from vertical movement rela tive to the tube 81. it will thus be seen by this construction that the rise and fall movement of the tube 81 gives similar rise and fall movement to the shaft 108, and the same is maintained at-all times in proper cooperativerelation with the tube 81. The upper section of the shaft 108 operates in bearings 12 1-, one above and one below the gear 107, the bearings thus forming a housing for confining the gear 107 therebetween and permitting the shaft'108 to rotate and operate vertically therein and within the 107.

The lower end 117 of the shaft 108 is provided with a semicircular key 125. which fits'into a semi-circular opening 126 of a gear 127 carried in a recess in the bottom of the presser foot, the recess being of such diameter and depth as to permit freerotary movement of the gear. This gear 127 meshes with an intermediate gear 128, also carried in a recess in the bottom of the presser foot, the recess being of suitable depth and diameter to permit thegear to rot-ate freely on a stud 129 rigidly secured to the presser foot.

'llhe intcrmediate gear 128meshes with the thread loop forming gear 130, operating in a recess in the presser foot of suitable depth and diameter to permit free rotary movement the gear. Carried by the loop forming gear 130 is a circular plate 131 (see big. 53) secured thereto inany suitable manner, so that the plate and gear are substantially an integral operating unit. The plate is provided. with a vertical upstanding thread loop forming lug 133, so shaped at one, end 134 to permit it to pick up a strand of thread and carry such thread around in loop form as hereinafter described. The gear 130 is provided with a circular flange 132 extending vertically and equal to the thickness of the circular plate 131. The outside diameter of the flange is equal to the diameter of the hole 131 the same being a pressed fit over the circular flange 1.32, and being provided with one or more notches 131 into which portion of the flange 132 may be swaged laterally so as to interlock the parts and prevent relative .movement. The flange 132 is formed with a lug 132 which substantially corresponds in form to lug 133. When assembled the parts are located so as to aline with one another, as shown in Figs. 8 to 13 lilz-lLlSlVB, a channel 135 being formed there between by the ledge 1.35 (see Fig. 16). By making the lugs integral with the parts 130 and 131, the manufacture thereof is greatly facilitated, and. inasmuch as the lugs 133 and 132 are usually not over inch in thickness, and inasmuch as it is important to have the parts durable for high speed. operation, the integral construction of the lugs prevents any danger of their becoming knocked off or broken while in use, and a further advantage of this con struction resides in the fact that in case either of the parts wears or becomes damaged, a duplicate can be readily substituted without necessitating the renewal of both parts.

The channel 135 is provided for the purpose of permitting the entrance between the lugs of a thread loop cast-off finger 136 carried by circular plate 136. The cast-off is formed from a circular rib 137, the bottom edge thereof resting upon the upper face of the thread loop former plate 131 and operating in the channel 135. The end of the cast-off is inclined downwardly as at 138 to form a point 139 adapted to pass in under, pick up and cast off the loop 140 of the top thread 141 (see Fig. 6) each time the thread loop former rotates to a position where the loop will be entered by one of the needles. The location of the cast-oil? finger point 139, with respect to the left hand needle 62, is such as to insure the needle entering the loop of cross-thread, as shown in Figs. 3 andG, before the thread is drawn away from the lugs 133 and 132 01 the thread loop forming members. Adjacent to the circular rib 137 and spaced therefrom is an annular rib 1 12 fitting into a recess in the top of the presser foot for centralizing and locating the same. The bottom edge of this annular rib engages the outer edge 01 the thread loop toriner plate 131 for holding it in place for :tree rotary movement in the presser foot.

A. flange 1413 of plate 136 overlaps the top surface 01 the presser foot (see Figs. 6, 7 and 18) and is secured to the presser foot as by screws 14-6. The annular rib and the flange are cut away as indicated at 1 17 Figs. 3, 4-, 6 and 7) to aline with a channel 1.4-8 cut into the presser toot tor the entrance of: the cross-thread 141. Crossing the mouth of this channel is an open thread hook 14-9 for guiding the cross-thread to the stitching position.

In advance of the rib 137 is a. space 137 approximately equal in length to the lugs 133 and 132 for permitting the loops of thread when cast from the lugs to escape through such space, and to draw up close to the needle. Diainetricall opposite the rib 137 a similar rib 137 t 1e latter being spaced from plate 131 to provide a space or slot 137 as shown in Fig. 18 to permit the thread which terms the loops of the top stitch to pass thereunder as it is being carried around in front 01? the needle in the loop formation. It will be noted that this rib 1.3T operates as a. guide or hold-down device adapted to prevent the thread from jumping over the top of the lugs 133 and 132 while it is carrying the thread from the position shown in Fig. 11) to the position shown in Fig. 12. With reterence to Fig. 18, it. will be noted that there is a small space 137 between the annular rib 142 and the lug 133 suriicient in size for passage of the thread 1 11 as it is carried around in loop iorm. Such space is necessary since otherwise the thread would be wedged, between the parts and broken.

The top cross thread 14-1 is conducted to the thread hook 1 19 through the Ushaped thread eyelet 150, secured by a screw 151 and lug 152 to the face plate 153 indicated by dotted lines in Fig. 3. The Li -shaped thread eyelet receives the thread 141 as it passes from the tension 15.4. comprises a tension post 1535, tension spr ng 156, and adjusting nuts 157 for regulating The latter" the tension on the thread. A guide eye 158 conducts the thread to the tension 154 asthe thread is led from the usual thread stand (not shown). The tension 15% is carried by an angle bracket 159 secured to the lug 152 by screws 160. (Jo-acting with the U-shaped eyelet 150 is a rotary eccentric disk 161, secured to the end of the shaft 103 as by a screw 162, and rotating with the shaft in the direction of the arrow in Fig. 1 to engage the thread 141 at the proper time during the operation of the thread loop former to draw slack thread through the tension 15 1, and also in cooperation with the tension 1541 to hold the thread taut and under tension at another time during the action of the thread loop 10111161 upon the thread.

Ti ith reference to F igs. S to 13 inclusive, the thread loop former 131 rotates in the direction 01 the arrow and picks up a strand o1 thread 1 11 and carries it around the needies 62 in loop form as shown in Fig.8. In this position of the loop of thread the same is ready to be cast 011 01 the lugs 133 and 132" by the cast-ott 138 operating between the lugs 133 and 132, the location of the cast-off being slightly inthe rear and to the left of the left hand needle. Thus itWill be seen that the strand A is carried to the rear 01 both needles, and that the length of lies at an angle to bring it in between the two needles as shown. 1 1

A illustrated in Fig. 9, the thread loop former rotates to a position. where the thread loop is cast otl' of the lugs 133 and132* the cast -0t]? 138 passing directly between the lugs 1 13 and 132. and the loop oi thread being drawn close to the led. hand needle by the take-up action of the disk 161. The strand A is being stitched down by the needle loop D, while the strand B and the portion C is bein stitched ,down by the needle thread loop in F 10, the thread loop former has rotated to a position where it has picked up and begun to carry the thread 1 11 to form a. loop and. bring it into position for the needles. in F 11 the thread loop formed as shown in Fig. 10, has been carried to a po sition directly in front of the needles, and in this position the strand B of thread is broughtclose to the right hand needle. In Fig. 12, the thread loop former has rotated still further around the needles, carrying the strand A of the loop directly in front The porof'and across the needles, and in Fig. 13 the loop of thread is shown in position for the entrance of the left hand needle into the loop, the strand A being in back of the left hand needle, and thestrand B being in back of the right hand needle. The loop is in position to be cast off by the cast-off 138 upon the further movement of the thread loop former for the completion of the stitch. I The feeding of the work takes place during each complete rotary movement of the thread loop former for the purpose of spacing the lengths of stitches as usual. The feed has completed its movement when the thread loop former has reached the position shown in Fig. 8. The feed is moving downward when the thread loop former has reached the position of Fig. 9, and is mov- .ing forward when the thread loop former reaches the position shown in Fig. 10. The work is being fed when the thread loop former is moving to the position of Figs. 11, 12 and 13, completing the cycle.

The feed movement is a very important factor in the layingof the stitches, due to the fact that short stitches are very difficult to make with a mechanism that merely reciprocatesto and fro in front of the needles inasmuch as the advancement of the work, as each stitch is formed, is. relied upon to carry the strands of thread, forming the cross-stitches to be stitched down by the needle loops past the needles. This disadvantage resulting from such feeding of the cross thread loops past the needles is overcome in the present improvement wherein the cross-thread loop former has a continuous circular or rotary movement in a continuous path or direction. Thus the loop former being a rotary device, moving round and round the needles, the thread is carried by the loop former directly behind the nee- .up slackand give slack. In Fig. 8 the controller is illustrated as taking up the slack in the thread between the eyelet 1 19 and the stitch mechanism.- The take-up rotates to draw or take up the loop as it is cast off the lugs 133 and 132*, as shown in Fig. 9 thereby partly closing the loop around the left hand needle. The loop is further drawn up around the needle, as shown in Fig. 10 by the movement of the lugs 133 and 132 taking up the thread and carrying it in loop form around the right hand needle. In this position the take-up 161 is shown giving up thread to form the loop shown in Figs. 11 and 12, while in Fig. 13, the take up 161 is beginning to act on the thread to tighten it or place it under tension as the loop moves to the position to be cast off of the lugs 133 and 132 The amount of friction applied to the thread by the tension 154 controls the size of the top thread loops, a tight tension having a tendency to narrow the stitch and a loose tension having a tendency to broaden it.

In Figs. 14 and 15 two pieces of goods are shown stitched together, the body fabric being indicated at 163, and the tubular fabric at 16%. The inner portions of the two fabrics overlap one another at 165, and are secured by the needle thread loops 166 on top of the work, interlaced by the cross thread loops 167, the needle threads being concatinated on the bottom of the work by the looper thread stitches 168.

As shown in Fig. 2, the feed dog 20 cooperates with a throat plate P for feeding the work, the throat plate having the usual needle holes and tongue Q, over which the looper thread stitches are formed. he prcsser foot bottom may also.be provided with a tongue B (Fig. 6) projecting in between the needles, over which the cross stitches may be formed on top of the work. The length and shape of the throat plate and presser foot tongues Q and B may be varied to suit the character of work. On delicate fabrics such tongues are desirable in order to clamp the goods between them at the time the needles enter the work and at the time of drawing up the stitches, while on more rigid fabrics such tongues are not always required.

Although I have described my invention in its preferred form, it is to be understood that I do not limit myself to the construction herein shown and described, except in so far as defined in the appended claims and embraced within the scope thereof.

I claim as my invention:

1. In a sewing machine, the combination of stitching mechanism, looper mechanism, cross thread carrying means movable in a continuous direction, and thread com'lucting means operative to conduct the thread to the cross thread carrying means, said thread conducting means being restrained from rotation about said stitching mechanism.

2. In a sewing machine, the combination of stitching mechanism, looper mechanism cooperatin therewith, rotary cross thread carrying means movable in a continuous di rection around the stitching mechanism, and thread conducting means operative to conduct the thread tothe cross thread carrying means, said thread. conducting means being restrained from rotation about said mechanism.

3. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a. plurality of needles, cross thread carrying means having the axis thereof substantially coincident with the axis of the needle bar cooperating therewith and movable in a continuous direction, and

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isles-s77 thread conducting means operative to con-- duct the thread to the cross thread carrying means, said thread conducting means being restrained from rotation about said stitching mechanism.

a. In a sewing machine, the combination ot stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism, and cross thread carrying means cooperating therewith and movable in a continuous direction, said cross thread carrying means including means for intermittently engaging the thread.

5. In a sewing machine, the combination oi stitching mechanism comprising a needle bar carrying a plurality of needles, rotary cross thread carrying means cooperating therewith and movable in a non-reciproow tory path around the path of the needles, and fixed means for guiding the thread thereto.

(3. In a sewing machine, the combination o'l stitching mechanism comprisii'ig a needle bar carrying a plurality of needles, rotary cross thread carrying means cooperating tllQlGWlt-l] and movable in a continuous circular direction around the needles, and thread conducting means operative to conduct the threadto the cross thread carrying means, said thread conducting means ljieing restraineiil from rotation about said mechanism.

T. in a sewing machine, the combination of stitching mechanism, looper mechanism, and cross thread carrying means movable in a continuous direction and including means adapted to engage and be disengaged from. the thread during such movement.

8. In a sewing machine, the combination of stitching mechanism comprising a needle "bar carrying a plurality ot needles, rotary cross thread carrying means n'iovahle horizontally in a continuous non-rcciprocatory path relatively to the needles. and including means adapted to engage and he disengaged. 'lroln the tbreadduring such movement.

9. In a sewing machine, the combination. oi? stitching mechanism comprising a needle bar carrying a plurality of needles, and a rotary cross thread carrying means comprising a plurality of spaced projecting members movable horizontally in a continuous path relatively to the needles. and adapted to engage and be disengaged from the thread.

10. in a sewing machine. the coinbii'iation o'l' stitiching mechanism comprising a needle bar carrying a plurality ol needles, rotary cross thread carrying means comprising a upright member n'iovable horizontally in a continuous circular mm-oscillatm-y path relatively to the needles, 'lor intermittenily engaging the thread.

ll. in a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality ot needles, rotary cross thread carrying means comprising an upright member movable in a continuous cir cular non-reciprocatory path around the path of the needles, and thread conducting means operative to conduct the thread to the cross thread carrying means, said thread conducting means being restrained from rotation about said mechanism.

12. In a sewingmachine, the combination of stitching mechanism comprising a. needle bar carrying a plurality of needles, and r0- tary cross thread carrying means comprising a plurality of spaced. upright threadengaging members movabl in a continuous path about the needles tor intermittently engaging the thread.

13. In a sewing machine, the combination of stitching mechanism comprising a pinrality oat needles, a cross-thread carrying means cooperating therewith and movable in a continuous path around the needles, and cast-oil means cooperating with said cross-thread carrying means at predetermined times.

14. In a sewing machine, the combination of stitching mechanism comprising a plurality of needles, looper mechanism coopcrating with the needles, a rotary cross thread carrying means cooperating therewith and movable in a continuous path around the needles, and cast-oft means cooperating with said cross-thread carrying means at predetermined times.

in a sewing machine, the con' hination of stitching mechanism con'iprising a needle bar carrying a plurality of needles,

a cross-thread carrying means having its axis substantially coincident with the axis of the needle bar cooperating therewith and movable in a continuous path relatively to the needles, and cast-oil means cooperating with said cross-thread carrying means at predetermined times.

16. In a sewing machine, the combinathm 0t stitching mechanism comprising a needle bar carrying a plurality of needles. iooper mechanism cooperating therewith. a rotary cross-thread carrying means cooperating therewith and movable in a continuous path relatively to the needles, and cast-oil means cooperating with said cross-thread carrying means at n-edetermined times.

17. lin a sewing machine, the combination 0t stitching mechanism comprisinoa needle bar carrying a plurality otneedles, a rotary cross-thread carrying means cooperating therewith and movable in a circular path around the path oi the needles, and

cast-off means cooperating with said crossthread carrying means at predetermined times.

18. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, a ro tary cross-thread carrying means cooperating therewith and movable in a continuous circular path around the needles, and castoi'f means cooperating with said cross-thread carrying means at predetermined times.

1.9. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a-pair of needles, a cross-thread carrying means comprising a pro ecting member adapted to rotate in a continuous path around the needles, and cast-ctr means cooperating with said cross-thread carrying means at predetermined times.

20. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, a rotary cross-thread carrying means comprising'an upright member movable in con tinuous substantially horizontal path rela tively to the needles, and cast-oft means cooperating with said cross-thread carrying means at predetermined time 21. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating therewith, a rotary cross-thread carrying means comprising a plurality of spaced projecting members movable in a continuous path relatively to the needles, and cast-oil means cooperating with said cross-thread carrying means at predetermined times.

22. In a sewing machine, the combination of stitching mechanism con'iprising a needle bar carrying a plurality of needles, looper mechanism cooperating therewith, a rotary cross-thread carrying means comprising an upright member movable in a continuous circular path relatively to the needles, and cast-oil means cooperating with said crossthread carrying means at predetermined times. 7

23. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality oi? needles, a rotary cross-thread carrying means comprising an upright member movable in a continuous circular path around the path of the needles, and cast oll means cooperating with said cross-thread carrying means at predetermined times.

24-. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, a rotary cross-thread carrying means comprising a plurality of spaced upright members movable in a continuous path around the needles, and cast-oil means cooperating with said cross-thread carrying means at prethread carrying means cooperating therewith and movable in a continuous path around the needles, cast-oil means cooperating with said cross-thread carrying means at predetermined times, and rotary take-up means effective synchronously with said cast-oil means.

26. ln a sewing machine, the combination oi stitching mechanism comprising a needle bar carrying a plurality of needles, a rotary crossthread carrying means cooperating therewith and movable in a continuous path relatively to the needles, cast-0ft means cooperating with said cross-thread carrying means at predetermined times, and rotary take-up means ellective synchronously with said cast-oil means.

2?. In a sewing machine, the combination oi stitching mechanism comprising a needle bar carrying a plurality oi needles, a rotary cross-thread carrying means cooperating therewith and movable in a circular path around the path of the needles, cast-oil means cooperating with said cross-thread carrying means at predetermined times, and ro ry take-up means effective synchronously with said cast-oil means.

28. In a sewing machine, the combination oi stitching mechanism comprising a needle bar carrying pair ol needles, a crossthrcad carrying means comprising a projecting" member adapted to rotate in a con tinuous path around the needles, cast-off means cooperating with said cross-thread carrying means at predetermined times, and rotary take-up means effective synchronously with said cast-off means.

In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, a rotary cross-thread carrying means comprising a plurality of spaced projecting members movable in a continuous path relatively to the needles, castbfl' means cooperating with said cross-thread carrying means at predetermined times, and rotary take-up means effective synchronously with said cast-off means.

30. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality oi needles, looper mechanism cooperating with said needles, presser foot mechanism, and cross-thread carrying means carried by said presser i'oot mechanism and movable in a continuous direction.

31. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, and rotary crossthread carrying means supported by said pres'ser foot mechanism and rotatable in a continuous direction around the needles.

32. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser toot mechanism, and rotary crossthread carrying means carried by said presser :toot mechanism and having its axis substantially alined with the axis of the needle bar and movable in a nonreciprocatory path around the path of the needles.

33. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser toot mechanism, and cross-thread carrying means carried by said presser toot mechanism and movable in a continuous path relatively to the needles, and cast-oil means carried by said presser foot mechanism and adapted to cooperate with said cross-thread carrying means at predetermined times.

In a sewing machine, the combination of stitching mechanism con'iprising a needle bar carrying a plurality ct needles, looper mechanism cooperating with said needles, presser toot mechanism, rotary cross-thread carrying means supported by said presser toot mechanism and rotatable in a continuous path around the needles, and cast-oft means carried by said presser foot mechanism and adapted to cooperate with said cross-thread carrying means at predetermined times.

i 35. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser toot mechanism, rotary cross-thread carrying means supported by said. presser ioot mechanisnii having its axis substantially alined with the axis of the needle bar and movable in a circular path around the path of the needles, and cast-off means cooperating therewith.

36. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, cross-thread carrying means carried by said presser foot mech anism and movable in a continuous path relatively to the needles, cast-off means carried by said presser foot. mechanism and adapted to cooperate with said cross-thread carrying means at predetermined times, and rotary take-up means operative upon the thread simultaneously with said cast-oft means. i

37. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper medianism cooperating with said needles, presser toot mechanism, rotary cross thread carrying means supported by said presser toot mechanism and rotatable in a cont-inuous path around the needles, east-oil means carried by said presser foot mechanism and adapted to cooperate with said cross-thread carrying means at predetermined times, and rotary take-up means operative upon the thread simultaneously with said cast oti means.

38. In a sewing machine, the combination of stitching mechanism comprising a needle barcarrying a plurality oi needles, looper n'i'echanism cooperating with said needles, presser toot mechanism, rotary cross-thread carrying means supported by said presser toot mechanism and having it axis substantially alined with the axis of the needle bar and movable in a circular path around the path of the needles, cast-oil means operative upon the thread at predetermined times and rotary take-up means operative upon the thread simultaneously with said cast-off means.

39. In a fewinc machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported to one side and out of alinement with the needles, cross-thread carrying means carried by the presser toot mechanism and comprising one or more projecting members movable in a continuous rotary non-oscillatory path relatively to the path of the needles and adapted to engage the thread from said thread guide and carry the same to a loop-forming position.

40. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser toot mechanism, a thread guide sup ported to one side and slightly in the rear of one of the needles, and cross-thread carrying'means supported by the presser toot mechanism and comprising one or more pro jecting members movable in a continuous non-oscillatory path about the needles and adapted to engage the thread from said thread uide and carr i the same to a loo forming position. y l

41. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser toot mechanism, "a thread guide supported by the presser toot mechanism to one side and slightly in the rear of one of the needles, and cross-thread carrying means supported by the presser toot mechanism and having the axis thereof substantially alined, with the axis of the needle bar and comprising one or more projecting members movable in a continuous non-oscillatory path about the needles and'adapted to engage the thread from said thread guide and carry the same to a loop-forming position.

means eii'ective atpredetermined times to cast 0a" the thread from said cross-thread carrying means. I

48. In a sewing machine, the combination of stitching machanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported by the presser foot mechanism to one side and slightly in the rear of one of the needles, cross-thread carrying means supported by the presser foot mechanism and having the axis thereof substantially alined with the axis of the needle bar and comprising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread. guide and carry the same to a loop-forming position, and means effective at predetermined times to cast oif the threat from said cross-thread carrying means.

44:. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported to one side and slightly in the rear of one of the needles, cross-thread carrying means supported by the presser foot mechanism and comprising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread guide and carry the same to a loop-"forming position, means effective at predetermined times to cast off the thread from said cross-thread carrying means, and rotary means effective at predetermined times for drawing a loop around one of the needles.

45. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported by'the presser foot mechanism to one side and slightly in the rear of one of the needle-s, cross-thread carrying means supported by the presser foot mechanism and having the axis thereof substantially alined with the axis of the needle bar and comprising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread guide and carry the same toa loopforming position, means effective at predetermined times to cast off the thread from said crossthread carrying means, and rotary means effective at predetermined times for drawing a loop around one of the needles.

46. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported to one side and slightly in the rear of one of the needles, cross-thread carrying means supported by the presserfoot mechanism and comprising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread guide and carry the same to a loop-forming position, means effective at predetermined times to cast off the thread from said crossthread carrying means, and rotary means effective at predetermined times and simultaneously with said cast-off means for drawing a loop around one of the needles, said cross-thread carrying means being effective at predetermined times to draw a loop around a second needle.

47. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide sup ported by the presser foot mechanism to one side and slightly in the rear of one of the needles, cross-thread carrying means supported by the presser foot mechanism and having the axis thereof substantially alined with the axis of the needle bar and com prising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread guide and carry the same to a loopforming position, means effective at predetermined times to cast off the thread from said cross-thread carrying means, and ro tary means effective at predetermined times and simultaneously with said cast off means.

for urawing a loop around one of the nee dles, said cross-thread carrying means being efi ective at predetermined times to draw a loop around a second needle i 48. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser foot mechanism, a thread guide supported to one side and slightly in the rear of one of theneedles, cross-thread carrying means supported by the presser foot mechanism and comprising one or more projecting'members movable in, a continuous path about the needles and adapted to engage the thread from said thread guide predetermined times to draw a loop around one of the needles, said cross-thread carrying means being subsequently operative to form a loop arounda second needle.

49. In a sewing machine, the combination of stitching mechanism comprising a needle bar carrying a plurality of needles, looper mechanism cooperating with said needles, presser'toot mechanism, a thread guide sup ported by the presser foot mechanism to one side and slightly in the rear of one of the needles, cross-thread carrying means supported by the presser foot mechanism and having the axis thereof substantially alined with the axis of the needle bar and comprising one or more projecting members movable in a continuous path about the needles and adapted to engage the thread from said thread guide and carry the same to a loop-forming position, means effective at predetermined times to cast off the thread from said cross-thread carrying 'means and comprising an inclined finger, and rotary means effective at predetermined times to draw a loop around one of the needles, said "cross-thread carrying means being subsequently operative to form a loop around a second needle.

50. In a sewing machine, the combination of stitching mechanism comprising a pair of substantially vertical operating needles, presser toot mechanism, a thread guide supported adjacent thereto for guiding a crossthread to said stitching mechanism, cross thread carrying means rotatable in a contin uous path about said needles and having a projecting member adapted to engage said cross-thread at predetermined times and carry the same to a loop-forming position,

, means effective at predetermined times for casting off the loop from said projecting member, and means for drawing said loop around one of the needles, said cross-thread carrying means being operative to draw a loop around a second needle.

51. In a sewing machine, the combination of stitching mechanism comprising a. plurality of needles, cross-thread carrying means cooperating therewith and movable in a continuous rotary path around the needles, means effective at predetermined times to cast cit the thread from said cross-thread. carrying means, and means operative simultaneously with said cast-oft means for drawing a loop around a needle.

52. In a sewing machine, the combination of stitching mechanism, cross stitching mechanism cooperating therewith and comprising means having spaced thread engaging members, and means for moving said members in a path to engage and be disengaged from the thread.

53. In a sewing machine, the combination of stitching mechanism, cross-stitching mechanism cooperating therewith and comprising a ring-shaped member having a thread-engaging projection adapted to engage and be disengaged from the thread, and means controlled. by said stitching mechanism for rotating said rin -shaped member aboutsaid needles in a continuous direction.

In a sewing machine, the combination of stitching mechanism, and cross-stitching mechanism cooperating therewith and comprising a ring-shaped member having a thread-engaging projection and adapted to move in a continuous direction about said needles and to engage and be disengaged from the thread.

In a sewing machine, the combination of stitching mechanism, cross-stitching mechanism cooperating therewith and comprising means having a thread-engaging projection, and cast-ofif means comprising a projecting member adapted to cooperate with said projection at predetermined times.

56. In a sewing machine, the combination of stitching mechanism, pressel' foot mechanism, and cross-stitching mechanism carried by said presser foot mechanism and comprising rotatable means having thread-ei'igag ing members and means cooperating therewith at predetermined times for engaging the thread.

57. In a sewing machine, the combination of stitching mechanism comprising a pair oi needles, presser itoot mechanism having a recess therein, cross-stitching mechanism carried in said recess and comprising a ring shaped member provided with gear teeth and a pair of projecting thread-engaging lugs, one spaced from the other, a gear cooperating with said teeth for rotating said member in a continuous path about the needles, and a cast-cit device comprising a ringshaped member having a depending finger adapted to project between said lugs at predetermined times.

58. In a sewing machine, the combination of stitching mechanism comprising a pair of needles, and cross-stitch forming mechanism cooperating therewith and comprising a pair of ring-shaped members provided with a pair of spaced thread-engaging projections adapted to rotate in a continuous path about the needles.

In a sewing machine, the combination of stitching mechanism comprising a pair of needles, and cross-stitch forming mechanism cooperating therewith and comprising a pair oi interconnected members provided with a pair of spaced thread engaging projections adapted to rotate in a continuous path about the needles, one of said members comprising a ring gear and the other a ring plate.

60; In a sewing machine, the combination of stitching mechanism comprising a pair of stitching mechanism, cross stitch forming mechanism cooperating therewith and com prising means provided with a pair of spaced tnead-engaging projections adapted to rotate in a continuous direction, and means adapted to project between said projections at predetermined times.

62.- In a sewing machine, the combination of stitching mechanism comprising a needle bar and a pair of needles carried thereby, an operating shaft therefor, presser foot mechanism, a cross-thread guide, cross stitch forming mechanism carried by said presser foot mechanism and comprising a rotary member having a thread-engaging part adapted to rotate in a continuous direction about said needles, means connected to said first shaft for operating said rotary member and comprising a shaft operable in a plane transverse to said first shaft, and a gear carried by said presser foot.

63. In a sewing machine, the combination of stitching mechanism comprising a needle bar and a pair of needles carried thereby, an operating shaft therefor, presser foot mech- 1 anism, a cross-thread guide, cross-stitch forming mechanism carried by said presser foot mechanism and comprising arotary member having a thread-engaging part adapted to rotate in a continuous path about said needles, means connected to said first shaft for operating said rotary member and comprising a shaft operable in a plane transverse to said first shaft, a gear carried by said presser foot, said cross-stitch forming mechanism being operative to carry a thread loop from said guide, means operative at predetermined times to cast off the loop from said cross-stitch forming mechanism, and rotary means connected to said first shaft for drawing the loop at predetermined times around a needle, said cross-stitch forming mechanism being subsequently operative to draw a loop around the other needle.

64;. In a sewing machine, the combination of stitching mechanism, presser foot mechanism, cross-stitching mechanism carried by said presser foot mechanism and comprising thread engaging means rotatable in a continuous direction, and a common means for operating said stitching and cross stitching mechanism at a uniform speed ratio.

65. In a sewing machine, the combination of stitching mechanism, presser foot mechanism, cross-stitching mechanism mounted,

in said presser foot mechanism, rotary thread control means, driving means for the stitching mechanism, driving means for the cross-stitching mechanism, driving means for the rotary thread control means, and means for operatively interconnecting all of said driving means.

66. In a sewing machine, the combination of needle mechanism, a presser foot, a presser foot supporting bar therefor, crossstitching mechanism carried by said presser foot, a driving shaft for the needle mechanism, a driving shaft carried by the presser foot bar for the cross-stitching mechanism, and means for interconnecting said driving shafts whereby the same will rotate at a uniform speed ratio, and said second driving shaft will rotate continuously in one direction.

67. A sewing machine having stitching mechanism and looper mechanism cooperating therewith, a cross thread carrier mov able continuously in one direction, thread conducting means operative to conduct the thread to the cross thread carrier, said thread conducting means being restrained from rotation about said stitching mechanism and operating means for said carrier.

68. A sewing machine having stitching mechanism and a cross thread. carrier movable in a continuous substantially horizontal direction to engage and disengage the thread, and operating means for said carrier comprising a rotary shaft connected therewith.

69. A sewing machine having stitching mechanism and looper mechanism cooperating therewith, a cross thread carrier movable in a continuous direction to intermittently engage the thread, means for conducting the thread thereto, operating means for said carrier comprising a rotary shaft connected therewith, and a driving shaft connected with said rotary shaft.

70. A sewing machine having stitching mechanism and a cross thread carrier movable in a continuous path in one direction. operating means for said carrier comprising a rotary shaft connected therewith, a driving shaft connected with said rotary shaft, a presser foot, and a hollow supporting bar therefor, said carrier shaft being located within said presser foot bar.

71. A sewing machine having stitching mechanism and looper mechanism cooperating therewith, across thread carrier movable in a continuous direction, and means for causing said carrier to carry the thread during a part only of its travel.

72. In a sewing machine the combination of needle mechanism, looper mechanism, and cross thread mechanism, the latter movable in a continuous substantially circular direction, and means for causing the cross thread mechanism to carry the thread during a part only of its movement.

7 8. A sewing machine having a presser foot, a hollow presser foot bar for supporting the same and a main driving shaft, in combination with needle mechanism, looper mechanism, and rotary cross thread mechanism movable in a continuous direction, a shaft carried by said presser foot bar, means connecting said shaft with the main drive shaft, and means connecting said shaft with said cross thread mechanism.

7%. In a sewing machine the combination of needle mechanism, looper mechanism, cross thread carrying mechanism movable in a continuous direction to engage and disengage the thread, means for conducting the thread thereto, a driving shaft, a shaft transverse to said driving shaft connected therewith, and means connecting said trans verse shaft with the cross thread carrying" mechanism "for imparting a continuous r0- tary movement thereto.

Signed at Nyack, New York, this 26th day of March, 1921.

JOHN P. WEIS, 

